tanxunhong
New member
- Points
- 61
- Car
- Subaru STI
i've just changed my orginal air filter into HKS racing suction filter.
but the workshop(sungbeng) installed the filter itself without the piping as my dad driven it to install. so now whenever we drive to a certain RPM, the air intake sound start to have gapping in between. is the piping problem or the filter? the air intake seems lacking of it.!
but the workshop(sungbeng) installed the filter itself without the piping as my dad driven it to install. so now whenever we drive to a certain RPM, the air intake sound start to have gapping in between. is the piping problem or the filter? the air intake seems lacking of it.!